aristide1, when you mention that you are hitting a checkpoint every 6 minutes, do you mean that you are going through one percent every 6 minutes, or is it something else? Also, to finish a work unit in 10 hours is pretty fast, what hardware are you running it on? Sorry if you've mentioned it elsewhere--no time to search right now.

Yes 1% every 6 minutes. It's was on a lowly Pentium 4, obviously with a total of 44 points it wasn't much work to begin with. On average I would say it lowered the PPD that that PC usually gets.

No on my Core 2 Duo a couple of SMPs were about 23 minutes each and worth about 1385 points. I like those better.

_________________People who put money and political ideology ahead of truth and ethics are neither﻿ patriots nor human beings.

Sadly I've had several SMP WU's take >5 days on a dual proc Xeon 2.4GHz machine. From what I have read, I would get no credit for these units as they are over the final deadline. I have been forced to run 4x individual instances on these machines.

Remember, the SMP client is designed for quad-cores, but runs on dual cores -- so even with the Linux SMP client, you only have about 10-24 hours of "cushion". On my dual core X2, the Windows SMP was never able to complete a WU on time, even with (virtually) 100% CPU time.

we should really warn people that unless they have quite a powerful machine and can let it Fold at high utilisation (90%+?) the SMP client is not the way to go.

My Opteron 170 completed windows SMP WU's with 35% time to deadline remaining, and it was running at stock, 2.0ghz. To me that implies that even the slowest X2 dual core can handle it, I can't speak for Pentium D machines though.

we should really warn people that unless they have quite a powerful machine and can let it Fold at high utilisation (90%+?) the SMP client is not the way to go.

I think we need to work out what quite powerful is.
i.e. my 4400+ Brisbane is running the SMP client on 64bit OpenSUSE and hasn't got to within 24HR's... yet, closeish on some WU's though(2608,2609)
It's on 24/7 (Apart from when I've killed the MOBO, CPU or No.1 HD... )

am running XP SMP client on Asus Striker, 2gb ram and C2D6600 at stock. Have had no instability issues since it was installed (2 months?) and am folding 1% every 15mins on this current 2610 project

Also running normal XP client on 3.2 prescott, 1gb ram....was reading this thread and it suggested I might be able to run the SMP client on it? can you give details (unless its obvious..ie just install and run it )

cheers, Myth

_________________There are 10 kinds of people, those who understand binary and those who don't.
My Folds

My "new" Opteron 165 OC'd to 2.7 (wouldn't have tried if I hadn't been drunk, as posted in OT) running Linux SMP on SuSE 10.2 completes 1% in about 18:40 (circa 32 hours - 36 hours for a full WU, depending on the WU). It's using about 1.2-1.3 Gb of ram constantly. The core duo laptop at 1.83 (not core 2 duo) and 1 Gb ram takes about 50 hours to complete an SMP WU using the windows client.

we should really warn people that unless they have quite a powerful machine and can let it Fold at high utilisation (90%+?) the SMP client is not the way to go.

My Opteron 170 completed windows SMP WU's with 35% time to deadline remaining, and it was running at stock, 2.0ghz. To me that implies that even the slowest X2 dual core can handle it, I can't speak for Pentium D machines though.

Does the Opteron have 1MB L2 caches? My X2 4200+ has only 512KB L2 caches...

Sadly I've had several SMP WU's take >5 days on a dual proc Xeon 2.4GHz machine. From what I have read, I would get no credit for these units as they are over the final deadline. I have been forced to run 4x individual instances on these machines.

??? Why have I gotten points for work units that have taken 10-14 days to complete ???

_________________People who put money and political ideology ahead of truth and ethics are neither﻿ patriots nor human beings.

Does the Opteron have 1MB L2 caches? My X2 4200+ has only 512KB L2 caches...

yea, I think that's the issue. My lab computer is an x2 4200, and it takes approximately 44min/frame, whereas my opteron at 2.0ghz gets 30min/frame. Almost 15 minutes less on a chip that's 200mhz slower. The cache makes a huge impact, if we don't assume it's memory related.

It's pretty hot, but I'm not sure exactly how hot. Speedfan shows "system" temp gets up to around 52C.
My system has been folding for months now, with no blue screens or errors, so it seems stable enough. I use the stock NB heatpipe heatsink, removed the dumb foil cover, didn't replace the TIM (yet), no fan blowing directly on it, but good airflow.

well after letting the SMP clients run on overnite friday, sat & sun on my 2 PCs, it seems much slower. Gauging by the number of percent points complete, 2 copies of the FAH client run 1.5 to 2x as fast as the smp version on the same PC.

well after letting the SMP clients run on overnite friday, sat & sun on my 2 PCs, it seems much slower. Gauging by the number of percent points complete, 2 copies of the FAH client run 1.5 to 2x as fast as the smp version on the same PC.

If you are running the Windows SMP client on a slower dual core (esp. one with smaller L2 caches), then it may or may not be worthwhile. However, if it has larger caches, and/or you are running the Linux SMP client, then the PPD will be 3-4X higher than two instances of the "regular" [email protected] client on the same machine.

I just got two of my friends to start SMP folding for me. I think they have X2's running at 2.2 and 2.4ghz. Small caches compared to my opteron, but my lab computer completes the WU's before the deadline, so I'm not worried. Also, a friend of mine is building a Quad core machine, and has said that he'll fold for me in return for my help assembling. And he's also going to fold with his PS3 under my username. Should be interesting to see how this all adds up.

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